Experimental study on turning particle reinforced titanium matrix composites
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摘要: 为研究切削参数对颗粒增强钛基复合材料已加工表面粗糙度的影响规律,通过对切削力和切削温度开展试验研究,探究钛基复合材料的切削加工性。结果表明:在车削钛基复合材料时,随切削速度提高,切削力先增大后减小;切削温度随切削速度的升高而升高,且在较高速度范围内温度升高放缓;切削力随着颗粒含量的升高明显增大,但切削温度有所降低;切削参数在v=80~100 m/min,ap=0.30~0.60 mm,f=0.06~0.10 mm/r范围内,已加工表面粗糙度Ra可在0.5 μm以下。Abstract: To study the effect of cutting parameters on the surface roughness of the particle-reinforced titanium matrix composites, both cutting force and cutting temperature were studied through experiments and the machinability of Ti matrix composites was explored. The results show that when turning the composites, the cutting force increases first and then decreases as the cutting speed increases; the cutting temperature increases with the increase of the cutting speed while the temperature increase becomes slower in higher speed range; the cutting force increases significantly with the increase of particle content, but the cutting temperature decreases. In conclusion, the processed surface roughness Ra can be below 0.5 μm with the cutting parameters in the range of v=80-100 m/min, ap=0.30-0.60 mm and f=0.06-0.10 mm/r.
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Key words:
- cutting parameters /
- cutting force /
- cutting temperature /
- surface roughness /
- titanium matrix composite
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